Apparatus for forming flanged openings in sheet-metal panels and the like



March 4, 1930. HANSEN T AL 1,749,184

APPARATUS FOR FORMING FLANGED OPENINGS IN SHEET METAL PANELS AND THE LIKE Filed Dec. 17, 192'! 3 Sheets-Sheet 1 841' 34 30 8 "3 u A g Y 31 32 5% 48 14 F1 1 l \-.l I a 3 ni L U. izo J8 126 20 24 3+ zz yz .1243 T 92 12 97 530 e ya March 4, 1930. E, HANSEN T AL 1,749,184

APPARATUS FOR FORMING FLANGED OPENINGS IN SHEET METAL PANELS AND THE LIKE Filed Dec. 17, 1927 3 Sheets-Sheet 2 [fig 5 l Z L j 33 30 32 31 I u 1770877207151 M&.M

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March 4, 1930. R. E. HANSEN ET AL APPARATUS FOR FORMING FLANGED OPENINGS IN SHEET METAL PANELS AND THE LIKE Filed Dec. 17, 1927 3 Sheets-Sheet 5 I12 UEIZZ'Of-S M Patented r; 4, 193

ES PATE OFFICE RUssiiLL ANSEN, on DETROIT, AND OTTO J. snonHN, on enossn roINTE PARK, 7 I -MICI-IIGAN, AssIGNons oi HUDSON MOTOR CAR COMPANY, or DETROIT, MICHI- GA A CORPORATION- .or MICHIGAN APPAR TUs FOR IORMING (FLANGED orn-NINes IN SHEET-METAL PANELS AND THE e LIKE- Y i "Application filedDeceinber 17,1927 Serial No. 240,891.

' This inv'iitien tes to apparatus for Sizi -Iingand setting. a flanged opening in abody of sheet metal and underturning thevfiange,

I and more particularly-to apparatus for set-.

. we i bilebody door panel ting the window opening in a metal automo- :It'is an objeotof'the invention to provide [an apparatus which will perform these opr it is desired to point'out that the embodiment herein described-is merely for the purpose of erations rapidlyand eifioiently. Before explaining; the inventionin detail "illustration and that the invention is not 1 in conjunction withithefl accompanying draw-r ings, in which a a I Figsfll and] 2 are elevational views of a thereby. limited except as claims'appended hereto. i T-he inventiongwilljbe more clearly stood from'the following description taken a a 2 door panel before and after being shaped respectively in accordance with the invention.

7 Figs 3' and '4 aresectiona'l elevational views taken'upon' the lines r; 5is' asectional vie w ofan apparatus embodying the invention taken upon the line l 55of Fig-.8 showing'the'u'pper-and lower dies separated.

completion of the forming oper- "ations respectively, o e -Fig. S-is a sectional plan viewtakenupon the line 8 8 ofFig. 5;

i f The f embodiment 7 of the invention illustratedeomprises baselO provid'edwith "project-ions 11; at its outer edges forming a a depression 11-2. block '18 projecting up- 'wardlyzfron'i the base and' positioned in the central "partof the. depression is suitably sefcuredtotheba'se as by bolts 14. support 1 16 is providedwithi an opening Qpermitting '-'=m ovementjtoward-and from the block 145 openings 18*in-the -base.=

T tion by springs 20" J, .350

13 and j is guided in its move'm'ent'by guides 1'? Suit ably secured theretofand slidably' engaging VThe support 16, yieldingly in raised posipreferably, is held 7 extending between opensings 21 and 22 in the support and base repointed out by the underspect-ively. i-The upward movement of the support 16 is limited by bolts 23 secured thereto and passing through openings 24 in the base provided with a shoulder 25 serving as a stop to engage the head of the bolts. The lower outer die members are movably carried upon'the support 16 and each is provided at its lower outer surface with a wearing block 31' adapted to engage a suitably shaped cam 32 positioned upon the inneri'ipper surface of each of the projections 11 'The inner upper surface of the die memberBO is provided with a wearing block through elongatedslots 5 therein and threaded into thefsupport 16. The upper outer" portion of each corner member 40 is provi d'ed' with awearing block secured there to in any suitable manner asby screws 46.

Adjacent corner members are connected by amember 41 movable relative thereto and secured thereto by screws 42 passing through elongated slots 43 in the member 41 and engaging the corner members. Theinner surface of each corner member 40 is provided with a wearing block 47 secured thereto in any suitable manner as byscrews 50 and adapted for cooperative engagement with cams 48 secured upon the upper corner portions of the block 13. The corner portions 40 of the inner low'erclie members normally are'held in engagement with the cams 48 by springs :51positioned with one end against the end of a slot'52 in the support 16 and with the opposite end engaging a pin 53 secured in the corner portions 40 and extend ing downwardly into the slots.

- An upper die member 55 is suitably mounted upon a reciprocable ram and is shaped to engage the body of a sheet metal panel 57 placed upon the lower outer die member 30 and to pass within the opening of'the panel and engage the flange 58 thereof and the top. surface of the inner die members.

The upper die member 55 issuitablyguided in its movement towards the lower die members'by guides 60 secured thereto and adapt- 7 ed for slidable engagement in guideways 61 in the block 13.

In operation, a body a sheet metal door panel 57 of the type shown in Figs. '1 and 2 having a flange 58 deter mining the outer end of a window opening is placed upon the wearing blocks 33 of the outer lower die members with the flange 58 surrounding the inner die members. The

' upper die member 55, is'then moved downwardly to engage thepanel upon theouter lowerdie members and move the latter downwardly together with the support 18.; ing thisfdownward movement the "wearing blocks3l engage the-cams 32 which" direct the outer lower die members inwardly.

along the topsurface of the support-Q 16 so as "to bring the wearing blocks 33 into en-- ga'gement with the flange 58. At-the same;

time the upper die member is passed into the window opening to engage the opposite side of the flange 58 and press'thesame against the wearing blocks '33 of the outer lower die members 30-thereby sizing and setting the window opening. ,Upon further downward movement, the upper die member engages the corner'portions of the inner lower die members causing the same to move downwardly together with the support 16 thereby bringing the wearing blocks 4:7,into

engagement with the cams 48" causing the corner portions of the lower inner die members to move outwardly toward the corners of the window opening and turn the depending portion of the flange 58 under the lower,

surface of the wearing blocks 33- ontheiouter 1 lower die members. 1

What we claim is: j 1. In an apparatus for shaping a'flanged opening in a sheet metal body, the combinationof a lower die ineluding inner and outer [die members, an upper die adapted to move into said opening and move said inner die member, means for d1rect1ng the movement of said inner member outwardly to turn the flange of said opening under said'outer die member, and means for thereafter causing said outer die member to'move away from ofsheet metal such as,

the work when said upper member is removed therefrom.

3. In an apparatus forshaping a flanged opening in a sheet metal body, the combinaj 7o into said opening and move said inner and. I I outer d1e 'meinbers, means for; d recting the movement of said outer d1e member inwardly 1 tion'ofa lower die including inner and outer d emembers, an upper d1e adapted to move against the flange of said opening and the movement of said inner member outwardly to turn the "flangeof'said opening under said outer member, and means for causing the;

outer member thereafter to move away from the work when said upper member is removed therefromp 4. In an apparatus forshaping a flanged opening in a sheet metal body,-the-combination of: a lower die inoludin'gayieldable'sup- W 7 port carrying anfouter. die, member and a slidable winner die -member, an upper die adapted to move intotheopening and move 7 -sald 1nner d1e,member, cam for directing the movement of the inner member outwardly e to turnthe flange of said opening under the derturned'flange. 5.. In an aparatus.

outer member, andfmeansfor moving said outer member outwardly away from the un-" for-' shapingl a flanged opening in a sheet metal1body,;the combina- 9; tionof a lower die including a yieldab-le sup port having inner and outer diemembers slidably mounted thereon, an'up'per'die adapted to move into saidopeningjandggmove saidginner: and outerv die members. with said, supj port,'flxedcams arranged first to direct said I outer die members inwardlyalong said yieldable support and against said flange" member andthereaft'er move said innerjmember outwardly nongsaiayindabm support to turn Q saidflange und'er said outerdie member, and

means formoving saidrinnerand outer die a members thereafter away fromthe work j 6. In an apparatus for shapingaflanged" opening in' a sheet' metal body, the combinationof alower dieincluding a yieldablesupport having inner and outerdie members slid- I ably mounted thereon, anupper dieyadapted to move into, said ,openingand'move said in-.' v

ner and outer die memberswith said support,

fixed cams arranged firstto direct saidouter die members inwardly along said yieldable support "and'against said flange and thereif after, movesaid inner; member outwardly along said yielda blesupport to turn said flange. under said outer die'membe'r, and means for moving sa dinnerandouter d e members thereafter awayfrom the work, n-

eluding a1 spring arranged to resisttheinward and outward movements of said outer and mner members and'returnthe same when said upper d1e iswithd'rawn from said open-- ing.

an apparatusifor shaping a, fl gd Open ng in a sheet metal body, the,

tion of alower die includinginner and outer clie members, an upper dieadapted to move in a predetermined path into said opening to shape the same against said outer die member, said inner die member being composed of corner portions and relatively movable 7 connecting portions, means formoving the corner portions ofsaid inner die member outwardly toward the corners of said flange to 10 turn said flange under the outer die member,

and means for moving said innerand outer die members thereafter away from the work. 8.; In :anjapparatus for shaping: a flanged opening ina sheet metal'body, the combina- 5 tion'oi a lower die includinga yie'ldab-le sup- 7 I port having inner and outer die members slidablymountedthereon, an upper die adapted to move intosaid opening and move said in- Jner and outer 'die memberswith said support, said inner die member being composed of corner portions and relatively movable connecting portions,' fiXed cams arranged to direct said outer die members inwardly'along said yieldable support and against the flange.

' and thereafter direct the corner portions of i said inner members, outwardly alongsai d yieldable support toward the corners of said 1 I flange to turnsaid flange under said outerdie member, and means! for moving said inner and outer d1e members thereafter away from i thework.

9. In anapparatusfor shaping a flanged opening in a sheetmetal body,,the combina- Y tl0n "(jf a lower die including inner andouter 5 die inembers', an upper die adapted to move in a predetermined path into said opening to f'draw andxshape the same against said outer die "member, meansffqfor j moving said inner 3 die member to turn the flange of said opening under said outer member and means for caus- Ling' said outer member thereafter to move away from the work.

*In testimony whereof we aflix oursigna- 

